Broken tabs layout

[Soare-Robert-Daniel]

Description

By default, WP adds a bottom margin of 6px that creates an extra gap in the design of tabs.

Step-by-step reproduction instructions

1. Check the tab gap with the bottom line in the plugin pages.

Screenshots, screen recording, code snippet or Help Scout ticket

Currently

How it should be

Environment info

https://pastebin.com/EEJvRLyC

Is the issue you are reporting a regression

No